Defect induced ferromagnetic ordering and room temperature negative magnetoresistance in MoTeP

oleh: Debarati Pal, Shiv Kumar, Prashant Shahi, Sambhab Dan, Abhineet Verma, Vinod K. Gangwar, Mahima Singh, Sujoy Chakravarty, Yoshiya Uwatoko, Satyen Saha, Swapnil Patil, Sandip Chatterjee

Format: Article
Diterbitkan: Nature Portfolio 2021-04-01

Deskripsi

Abstract The magneto-transport, magnetization and theoretical electronic-structure have been investigated on type-II Weyl semimetallic MoTeP. The ferromagnetic ordering is observed in the studied sample and it has been shown that the observed magnetic ordering is due to the defect states. It has also been demonstrated that the presence of ferromagnetic ordering in effect suppresses the magnetoresistance (MR) significantly. Interestingly, a change-over from positive to negative MR is observed at higher temperature which has been attributed to the dominance of spin scattering suppression.